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Refereed Archival Journal Papers
  1. Shinsuke Tanaka, Tatsuya Usuki, Yu Tanaka :
    "Accurate SPICE Model of Forward-Biased Silicon PIN Mach-Zehnder Modulator for an Energy-Efficient Multilevel Transmitter"
    J. of Lightwave Technology, vol.36, p.1959 (2018). (LINK)
     
  2. Shinsuke Tanaka, Takasi Simoyama, Tsuyoshi Aoki, Toshihiko Mori, Shigeaki Sekiguchi, Seok-Hwan Jeong, Tatsuya Usuki, Yu Tanaka, Ken Morito :
    "Ultralow-Power (1.59 mW/Gbps), 56-Gbps PAM4 Operation of Si Photonic Transmitter Integrating Segmented PIN Mach-Zehnder Modulator and 28-nm CMOS Driver"
    J. of Lightwave Technology, vol.36, p.1275 (2018). (LINK)
     
  3. Takeshi Baba, Suguru Akiyama, Masahiko Imai, and Tatsuya Usuki :
    "25-Gb/s broadband silicon modulator with 0.31-V⋅ cm Vπ L based on forward-biased PIN diodes embedded with passive equalizer "
    Optics Express, vol.23, p.32950 (2015). (LINK)
     
  4. Yutaka Urino, Nobuaki Hatori, Kenji Mizutani, Tatsuya Usuki, Junichi Fujikata, Koji Yamada, Tsuyoshi Horikawa, Takahiro Nakamura, and Yasuhiko Arakawa:
    "First Demonstration of Athermal Silicon Optical Interposers With Quantum Dot Lasers Operating up to 125 °C"
    J. of Lightwave Technology, vol.33, p.1223 (2015). (LINK)
     
  5. Daisuke Okamoto, Takeshi Akagawa, Tatsuya Usuki, Junichi Fujikata, Suguru Akiyama, Yutaka Urino, Takahiro Nakamura:
    "Bit error rate analysis of a silicon optical interposer using its equivalent circuit"
    IEICE Electronics Express, vol.12 p.20141084 (2015). (LINK)
     
  6. Suguru Akiyama and Tatsuya Usuki:
    "High-speed and efficient silicon modulator based on forward-biased pin diodes"
    Interdisciplinary Physics, vol.2 p.65 (2014). (LINK)
     
  7. Y. Urino, N. Hatori, T. Akagawa, T. Shimizu, M. Okano, M. Ishizaka, T. Yamamoto, H. Okayama, Y. Onawa, H. Takahashi, D. Shimura, H. Yaegashi, H. Nishi, H. Fukuda, K. Yamada, M. Miura, J. Fujikata, S. Akiyama, T. Baba, T. Usuki, Y. Noguchi, M. Noguchi, M. Imai, N. Hirayama, S. Saitou, M. Yamagishi, M. Takahashi, E. Saito, D. Okamoto, M. Mori, T. Horikawa, T. Nakamura, and Y. Arakawa:
    "Athermal silicon optical interposers with quantum dot lasers operating from 25 to 125 °C"
    Electronics Letters, vol.50, p.1377 (2014). (LINK)
     
  8. Yutaka Urino, Tatsuya Usuki, Junichi Fujikata, Masashige Ishizaka, Koji Yamada, Tsuyoshi Horikawa, Takahiro Nakamura, Yasuhiko Arakawa:
    "High-density and wide-bandwidth optical interconnects with silicon optical interposers"
    Photonics Research, Vol.2 Issue 3 pp.A1-A7 (2014). (LINK)
     
  9. Suguru Akiyama, Masahiko Imai, Takeshi Baba, Takeshi Akagawa, Naoki Hirayama, Yoshiji Noguchi, Miyoshi Seki, Keiji Koshino, Munehiro Toyama, Tsuyoshi Horikawa, Tatsuya Usuki:
    "Compact PIN-Diode-Based Silicon Modulator Using Side-Wall-Grating Waveguide"
    IEEE Journal of Selected Topics in Quantum Electronics, Vol.19 No.6 pp.3401611-3401611 (2013). (LINK)
     
  10. Yutaka URINO, Yoshiji NOGUCHI, Nobuaki HATORI, Masashige ISHIZAKA, Tatsuya USUKI, Junichi FUJIKATA, Koji YAMADA, Tsuyoshi HORIKAWA, Takahiro NAKAMURA, Yasuhiko ARAKAWA:
    "Advances in High-Density Inter-Chip Interconnects with Photonic Wiring"
    IEICE TRANSACTIONS on Electronics, Vol.E96-C No.7 pp.958-965 (2013). (LINK)
     
  11. Takeshi Baba, Suguru Akiyama, Masahiko Imai, Naoki Hirayama, Hiroyuki Takahashi, Yoshiji Noguchi, Tsuyoshi Horikawa, and Tatsuya Usuki :
    "50-Gb/s ring-resonator-based silicon modulator"
    Optics Express, vol.21, p.11869 (2013). (LINK)
     
  12. Yutaka Urino, Yoshiji Noguchi, Masataka Noguchi, Masahiko Imai, Masashi Yamagishi, Shigeru Saitou, Naoki Hirayama, Masashi Takahashi, Hiroyuki Takahashi, Emiko Saito, Makoto Okano, Takanori Shimizu, Nobuaki Hatori, Masashige Ishizaka, Tsuyoshi Yamamoto, Takeshi Baba, Takeshi Akagawa, Suguru Akiyama, Tatsuya Usuki, Daisuke Okamoto, Makoto Miura, Junichi Fujikata, Daisuke Shimura, Hideaki Okayama, Hiroki Yaegashi, Tai Tsuchizawa, Koji Yamada, Masahiko Mori, Tsuyoshi Horikawa, Takahiro Nakamura, and Yasuhiko Arakawa:
    "Demonstration of 12.5-Gbps optical interconnects integrated with lasers, optical splitters, optical modulators and photodetectors on a single silicon substrate"
    Optics Express, vol.20, p.B256 (2012). (LINK)
     
  13. Tatsuya Usuki :
    "Robust Optical Data Transfer on Silicon Photonic Chip"
    J. of Lightwave Technology, vol.30, p.2933 (2012). (LINK)
     
  14. Seok-Hwan Jeong, Shinsuke Tanaka, Shigeaki Sekiguchi, Teruo Kurahashi, Nobuaki Hatori, Suguru Akiyama, Tatsuya Usuki, Tsuyoshi Yamamoto, Tomoyuki Akiyama, Yu Tanaka, and Ken Morito :
    "Silicon-Wire Waveguide Based External Cavity Laser for Milliwatt-Order Output Power and Temperature Control Free Operation with Silicon Ring Modulator"
    Jpn. J. Appl. Phys., vol.51, p.082101 (2012). (LINK)
     
  15. Suguru Akiyama, Teruo Kurahashi, Ken Morito, Tsuyoshi Yamamoto, Tatsuya Usuki, and Shintaro Nomura:
    "Cascaded-ring-resonator-loaded Mach-Zehnder modulator for enhanced modulation efficiency in wide optical bandwidth"
    Optics Express, vol.20, p.16321 (2012). (LINK)
     
  16. Suguru Akiyama, Takeshi Baba, Masahiko Imai, Takeshi Akagawa, Masashi Takahashi, Naoki Hirayama, Hiroyuki Takahashi, Yoshiji Noguchi, Hideaki Okayama, Tsuyoshi Horikawa, and Tatsuya Usuki:
    "12.5-Gb/s operation with 0.29-Vcm VπL using silicon Mach-Zehnder modulator based-on forward-biased pin diode"
    Optics Express, vol.20, p.2911 (2012). (LINK)
     
  17. Yutaka Urino, Takanori Shimizu, Makoto Okano, Nobuaki Hatori, Masashige Ishizaka, Tsuyoshi Yamamoto, Takeshi Baba, Takeshi Akagawa, Suguru Akiyama, Tatsuya Usuki, Daisuke Okamoto, Makoto Miura, Masataka Noguchi, Junichi Fujikata, Daisuke Shimura, Hideaki Okayama, Tai Tsuchizawa, Toshifumi Watanabe, Koji Yamada, Seiichi Itabashi, Emiko Saito, Takahiro Nakamura, and Yasuhiko Arakawa:
    "First demonstration of high density optical interconnects integrated with lasers, optical modulators, and photodetectors on single silicon substrate"
    Optics Express, vol.19, p.B159 (2011). (LINK)
     
  18. Kazuya Takemoto, Yoshihiro Nambu, Toshiyuki Miyazawa, Kentaro Wakui, Shinichi Hirose, Tatsuya Usuki, Motomu Takatsu, Naoki Yokoyama, Ken'ichiro Yoshino, Akihisa Tomita, Shinichi Yorozu, Yoshiki Sakuma, and Yasuhiko Arakawa:
    "Transmission Experiment of Quantum Keys over 50 km Using High-Performance Quantum-Dot Single-Photon Source at 1.5 μm Wavelength"
    Appl. Phys. Express, vol.3, p.092802 (2010). (LINK)
     
  19. Suguru Akiyama, Teruo Kurahashi, Takeshi Baba, Nobuaki Hatori, Tatsuya Usuki, and Tsuyoshi Yamamoto:
    "A 1 V Peak-to-Peak Driven 10-Gbps Slow-Light Silicon Mach-Zehnder Modulator Using Cascaded Ring Resonators"
    Appl. Phys. Express, vol.3, p.072202 (2010). (LINK)
     
  20. T. Kuroda, Y. Sakuma, K. Sakoda, K. Takemoto, and T. Usuki:
    "Decoherence of single photons from an InAs/InP quantum dot emitting at a 1. 3 μm wavelength"
    Physica Status Solidi C, vol.6, pp.944-947 (2009). (LINK)
     
  21. Toshiyuki Miyazawa, Toshihiro Nakaoka, Tatsuya Usuki, Jun Tatebayashi, Yasuhiko Arakawa, Shinichi Hirose, Kazuya Takemoto, Motomu Takatsu, Naoki Yokoyama:
    "Electric field modulation of exciton recombination in InAs/GaAs quantum dots emitting at 1.3 μm"
    J. Appl. Phys., vol.104, pp.013504-013504-8 (2008). (LINK)
     
  22. K. Takemoto, S. Hirose, M. Takatsu, N. Yokoyama, Y. Sakuma, T. Usuki, T. Miyazawa, and Y. Arakawa:
    "Telecom single-photon source with horn structure"
    Physica Status Solidi C, vol.5, pp.2699-2703 (2008). (LINK)
     
  23. S. Amaha, T. Hatano, S. Teraoka, A. Shibatomi, S. Tarucha, Y. Nakata, T. Miyazawa, T. Oshima, T. Usuki, and N. Yokoyama:
    "Laterally coupled self-assembled InAs quantum dots embedded in resonant tunnel diode with multigate electrodes"
    Appl. Phys. Lett. vol.92, p.202109 (2008). (LINK)
     
  24. Toshiyuki Miyazawa, Shigekazu Okumura, Shinnichi Hirose, Kazuya Takemoto, Motomu Takatsu, Tatsuya Usuki, Naoki Yokoyama, and Yasuhiko Arakawa:
    "First Demonstration of Electrically Driven 1.55 μm Single-Photon Generators"
    Jpn. J. Appl. Phys., vol.47, pp.2880-2883 (2008). (LINK)
     
  25. Toshiyuki Miyazawa, Toshihiro Nakaoka, Tatsuya Usuki, Yasuhiko Arakawa, Kazuya Takemoto, Shinnichi Hirose, Shigekazu Okumura, Motomu Takatsu, and Naoki Yokoyama:
    "Exciton dynamics in current-injected single quantum dot at 1.55 μm"
    Appl. Phys. Lett. vol.92, p.161104 (2008). (LINK)
     
  26. Shinichi Tomimoto, Atsushi Kurokawa, Yoshiki Sakuma, Tatsuya Usuki, and Yasuaki Masumoto:
    "Radiative recombination of excitons in disk-shaped InAs/InP quantum dots"
    Phys. Rev. B vol.76, p.205317 (2007). (LINK)
     
  27. T. Kuroda, Y. Sakuma, K. Sakoda, K. Takemoto, and T. Usuki:
    "Single-photon interferography in InAs/InP quantum dots emitting at 1300 nm wavelength"
    Appl. Phys. Lett. vol.91, p.223113 (2007). (LINK)
     
  28. Kazuya Takemoto, Motomu Takatsu, Shinichi Hirose, Naoki Yokoyama, Yoshiki Sakuma, Tatsuya Usuki, Toshiyuki Miyazawa, and Yasuhiko Arakawa:
    "An optical horn structure for single-photon source using quantum dots at telecommunication wavelength"
    J. Appl. Phys. vol.101, p.081720 (2007). (LINK)
     
  29. Y. Akanuma, I. Yamakawa, Y. Sakuma, T. Usuki, and A. Nakamura:
    "Scanning tunneling microscopy study of interfacial structure of InAs quantum dots on InP(001) grown by a double-cap method"
    Appl. Phys. Lett. vol.90, p.093112 (2007). (LINK)
     
  30. H. Z. Song, T. Usuki, T. Ohshima, Y. Sakuma, M. Kawabe, Y. Okada, K. Takemoto, T. Miyazawa, S. Hirose, Y. Nakata, M. Takatsu, N. Yokoyama:
    "Site-controlled quantum dots fabricated using an atomic-force microscope assisted technique"
    Nanoscale Res. Lett., vol.1, pp.160-166 (2006). (LINK)
     
  31. T. Usuki, Y. Sakuma, S. Hirose, K. Takemoto, N. Yokoyama, T. Miyazawa, M. Takatsu, Y. Arakawa:
    "Single-photon generator for optical telecommunication wavelength"
    J. Phys., vol.38, pp.140-143 (2006). (LINK)
     
  32. Hidekazu Kumano, Satoshi Kimura, Michiaki Endo, Ikuo Suemune, Hirotaka Sasakura, Satoru Adachi, Shunichi Muto, Hai Zhi Song, Shinichi Hirose, Tatsuya Usuki:
    "Triggered single-photon emission and cross-correlation properties in InAlAs quantum dot"
    Physica E, vol.32, pp.144-147 (2006). (LINK)
     
  33. Toshiyuki Miyazawa, Jun Tatebayashi, Shinichi Hirose, Toshihiro Nakaoka, Satomi Ishida, Satoshi Iwamoto, Kazuya Takemoto, Tatsuya Usuki, Naoki Yokoyama, Motomu Takatsu and Yasuhiko Arakawa:
    "Development of Electrically Driven Single-Quantum-Dot Device at Optical Fiber Bands"
    Jpn. J. Appl. Phys., vol.45 (4B), pp.3621-3624 (2006). (LINK)
     
  34. Haizhi Song, Tatsuya Usuki, Yoshiaki Nakata, Naoki Yokoyama, Hirotaka Sasakura and Shunichi Muto:
    "Mechanism of Quantum Dot Formation by Postgrowth Annealing of Wetting Layer"
    Jpn. J. Appl. Phys., vol.45 (4B), pp.3564-3567 (2006). (LINK)
     
  35. H. Z. Song, T. Usuki, Y. Nakata, N. Yokoyama, H. Sasakura and S. Muto:
    "Formation of InAs/GaAs quantum dots from a subcritical InAs wetting layer: A reflection high-energy electron diffraction and theoretical study"
    Phys. Rev. B, vol.73, p.115327 (2006). (LINK)
     
  36. T. Ota, M. Rontani, S. Tarucha, Y. Nakata, H. Z. Song, T. Miyazawa, T. Usuki, M. Takatsu, and N. Yokoyama:
    "Few-Electron Molecular States and Their Transitions in a Single InAs Quantum Dot Molecule"
    Phys. Rev. Lett. vol.95, p.236801 (2005). (LINK)
     
  37. S. Kimura, H. Kumano, M. Endo, I. Suemune, T. Yokoi, H. Sasakura, S. Adachi, S. Muto, H.Z. Song, S. Hirose, T. Usuki:
    "Single-photon generation from InAlAs single quantum dot"
    Physica status solidi. C. vol.2, pp.3833--3837 (2005). (LINK)
     
  38. T. Yokoi, S. Adachi, S. Muto, H. Sasakura, H. Z. Song, S. Hirose, T. Usuki:
    "Observation of Overhauser shift in a self-assembled InAlAs quantum dot"
    Physica E, vol.29, pp.510-514 (2005). (LINK)
     
  39. Sakuma Y, Takeguchi M, Takemoto K, S. Hirose, T. Usuki, N. Yokoyama:
    "Role of thin InP cap layer and anion exchange reaction on structural and optical properties of InAs quantum dots on InP (001)"
    J. of Vac. Sci. & Tech. B, vol.23 pp.1741-1746 (2005). (LINK)
     
  40. T. Nakaoka, T. Saito, J. Tatebayashi, S. Hirose, T. Usuki, N. Yokoyama, Y. Arakawa:
    "Tuning of g-factor in self-assembled In(Ga)As quantum dots through strain engineering"
    Phys. Rev. B, vol.71, p.205301 (2005). (LINK)
     
  41. Satoshi Kimura, Hidekazu Kumano, Michiaki Endo, Ikuo Suemune, Tomonori Yokoi, Hirotaka Sasakura, Satoru Adachi, Shunichi Muto, Hai Zhi Song, Shinichi Hirose and Tatsuya Usuki:
    "Photon antibunching observed from an InAlAs single quantum dot"
    Jpn. J. Appl. Phys., vol.44, pp.L793-L796 Express Letter (2005). (LINK)
     
  42. Toshiyuki Miyazawa, Kazuya Takemoto, Yoshiki Sakuma, Shinichi Hirose, Tatsuya Usuki, Naoki Yokoyama, Motomu Takatsu and Yasuhiko Arakawa:
    "Single-Photon Generation in the 1.55-μm Optical-Fiber Band from an InAs/InP Quantum Dot"
    Jpn. J. Appl. Phys., vol.44, pp.L620-L622 Express Letter (2005). (LINK)
     
  43. Kazuya Takemoto, Yoshiki Sakuma, Shinichi Hirose, Tatsuya Usuki, Naoki Yokoyama, Toshiyuki Miyazawa, Motomu Takatsu, and Yasuhiko Arakawa:
    "Single InAs/InP Quantum Dot Spectroscopy in 1.3-1.55 μm Telecommunication Band"
    Physica E, vol.26, pp.185-189 (2005). (LINK)
     
  44. Y. Sakuma, K. Takemoto, S. Hirose, T. Usuki and N. Yokoyama:
    "Controlling emission wavelength from InAs self-assembled quantum dots on InP (0 0 1) during MOCVD"
    Physica E, vol.26, pp.81-85 (2005). (LINK)
     
  45. H. Z. Song, T. Usuki, S. Hirose, K. Takemoto, Y. Nakata, N. Yokoyama, and Y. Sakuma:
    "Site-controlled photoluminescence at telecommunication wavelength from InAs/InP quantum dots"
    Appl. Phys. Lett., vol.86, p.113118 (2005). (LINK)
     
  46. T. Yokoi, S. Adachi, H. Sasakura, S. Muto, H. Z. Song, T. Usuki, and S. Hirose:
    "Polarization-dependent shift in excitonic Zeeman splitting of self-assembled In0.75Al0.25As/ Al0.3Ga0.7As quantum dots"
    Phys. Rev. B vol.71, p.041307 (2005). (LINK)
     
  47. H. Z. Song, M. Kawabe, Y. Okada, R. Yoshizaki, T. Usuki, Y. Nakata, T. Ohshima, and N. Yokoyama:
    "Scanning tunneling microscope study of capped quantum dots"
    Appl. Phys. Lett., vol.85, no.12, pp.2355-2357 (2004). (LINK)
     
  48. Kazuya Takemoto, Yoshiki Sakuma, Shinichi Hirose, Tatsuya Usuki, Naoki Yokoyama, Toshiyuki Miyazawa, Motomu Takatsu and Yasuhiko Arakawa:
    "Non-classical Photon Emission from a Single InAs/InP Quantum Dot in the 1.3-μm Optical-Fiber Band"
    Jpn. J. Appl. Phys., vol.43, pp.L993-L995 Express Letter (2004). (LINK)
     
  49. H. Sasakura, S. Adachi, S. Muto, H. Z. Song, T. Miyazawa and T. Usuki:
    "Spin depolarization via tunneling effects in asymmetric double quantum dot structure"
    Jpn. J. Appl. Phys., vol.43, no.4B, pp.2110-2113 (2004). (LINK)
     
  50. H. Sasakura, S. Adachi, S. Muto, T. Usuki, and M. Takatsu:
    "Coulomb interaction in asymmetric triple-coupled quantum dots"
    Semicond. Sci. Tech., vol.19, no.4, pp. S409-S411 (2004). (LINK)
     
  51. Kazuya Takemoto, Yoshiki Sakuma, Shinichi Hirose, Tatsuya Usuki and Naoki Yokoyama:
    "Observation of Exciton Transition in 1.3-1.55 μm Band from Single InAs/InP Quantum Dots in Mesa Structure"
    Jpn. J. Appl. Phys., vol.43, pp.L349-L351 Express Letter (2004). (LINK)
     
  52. Kunihiro Suzuki and Tatsuya Usuki:
    "Metal Oxide Semiconductor Field Effect Transistor (MOSFET) Model Based on a Physical High-Field Carrier-Velocity Model"
    Jpn. J. Appl. Phys., vol.43, pp.77-81 (2004). (LINK)
     
  53. S. Takeishi, U. Rant, T. Fujiwara, K. Buchholz, T. Usuki, K. Arinaga, K. Takemoto, Y. Yamaguchi, M. Tornow, S. Fujita, G. Abstreiter and N. Yokoyama:
    "Observation of electrostatically released DNA from gold electrodes with controlled threshold voltages"
    J. Chem. Phys., vol.120, no.12, pp.5501-5504 (2004). (LINK)
     
  54. Tatsuya Usuki, Naoto Horiguchi, Kenichi Goto, Takuji Tanaka, Toshiro Futatsugi, Toshihiro Sugii and Naoki Yokoyama:
    "A Direct Tunneling Memory (DTM) using Ultra Thin Oxide and Deca-Nano Floating Gate Structure"
    Superlattices Microstruct. (UK) , vol.28, no.5-6 , pp.401-406 (2000). (LINK)
     
  55. Tatsuya Usuki:
    "Trade-off between Operational Speed and Error Occurrence for Single Electron Circuits on the Quantum Scale"
    Microelectronic Engineering (Netherlands) , vol.47, no.1-4 , pp.269-271 (1999). (LINK)
     
  56. Tatsuya Usuki, Toshiro Futatsugi, Naoki Yokoyama:
    "A Proposal of New Floating-Dot Memory Storing a Small Number of Electrons with Relatively Long Retention Time at Low Voltage Operations":
    Microelectronic Engineering (Netherlands) , vol.47, no.1-4 , pp.281-3 (1999). (LINK)
     
  57. Tatsuya Usuki, Toshiro Futatsugi and Anri Nakajima:
    "Theoretical Analysis of Write Errors and Number of Stored Electrons for Ten-Nanoscale Si Floating-Dot Memory"
    Jpn. J. Appl. Phys., vol.37, pp.L709-L711 (1998). (LINK)
     
  58. Tatsuya Usuki:
    "Analysis of Landau-Zener tunneling with an Ohmic reservoir and a noise source"
    Phys. Rev. B, vol.57, pp.7124-7131 (1998), (LINK)  
    "Erratum: Analysis of Landau-Zener tunneling with an Ohmic reservoir and noise source"
    Phys. Rev. B, vol.58, p.7456 (1998). (LINK)
     
  59. A. Nakajima, T. Futatsugi, H. Nakao, T. Usuki, N. Horiguchi, and N. Yokoyama:
    "Microstructure and electrical properties of Sn nanocrystals in thin, thermally grown SiO2 layers formed via low energy ion implantation"
    J. Appl. Phys., vol.84, pp.1316-1320 (1998). (LINK)
     
  60. Tatsuya Usuki:
    "Theoretical study of Landau-Zener tunneling at the M+N level crossing"
    Phys. Rev. B, vol.56, pp.13360-13366 (1997). (LINK)
     
  61. T. Usuki, M. Saito, M. Takatsu, R.A. Kiehl, and N. Yokoyama:
    "Numerical analysis of ballistic-electron transport in magnetic fields by using a quantum point contact and a quantum wire"
    Phys. Rev. B, vol.52, pp.8244-8255 (1995). (LINK)
     
  62. A. Tackeuchi, Y. Nakata, S. Muto, Y. Sugiyama, T. Usuki, Y. Nishikawa, N. Yokoyama, and O. Wada:
    "Time-Resolved Study of Carrier Transfer among InAs/GaAs Multi-Coupled Quantum Dots"
    Jpn. J. Appl. Phys., vol.34, pp.L1439-L1441 (1995). (LINK)
     
  63. T. Usuki, M. Takatsu, R.A. Kiehl, and N. Yokoyama:
    "Numerical analysis of electron-wave detection by a wedge-shaped point contact"
    Phys. Rev. B, vol.50, pp.7615-7625 (1994). (LINK)
     
  64. M. Saito, T. Usuki, M. Okada, T. Futatsugi, R.A. Kiehl, and N. Yokoyama:
    "Coupling between one-dimensional states in a quantum point contact and an electron waveguide"
    Appl. Phys. Lett., vol.65, pp.3087-3089 (1994). (LINK)
     
  65. T. Usuki, N. Kawakami, and A. Okiji:
    "Thermodynamic Quantities of the One-Dimensional Hubbard Model at Finite Temperatures"
    J. Phys. Soc. Jpn. vol.59, pp.1357-1365 (1990). (LINK)
     
  66. N. Kawakami, T. Usuki, and A. Okiji:
    "Thermodynamic Properties of the One-Dimensional Hubbard Model"
    Phys. Lett. A, vol.137, pp.287-290 (1989). (LINK)
     
  67. T. Usuki, N. Kawakami, and A. Okiji:
    "Charge Susceptibility of the One-Dimensional Hubbard Model"
    Phys. Lett. A, vol.135, pp.476-480 (1989). (LINK)
     
  68. N. Kawakami, T. Usuki, and A. Okiji:
    "Magnetization Curve for Ce Compounds in the Crystalline Field"
    J. Phys. Soc. Jpn. vol.58, pp.1427-1432 (1989). (LINK)
     
  69. A. Okiji, N. Kawakami, and T. Usuki:
    "Magnetization curve for the heavy fermion compounds CeAl3 and CeCu2Si2 "
    J. Magn. Magn. Mat., vol.76&77, pp.121-122 (1988). (LINK)
     
  70. N. Kawakami, T. Usuki, and A. Okiji:
    "Thermoelectric Power of the Anderson Model at Low Temperatures"
    J. Phys. Soc. Jpn., vol.56, pp.1539-1545 (1987). (LINK)
     
  71. T. Usuki, N. Kawakami, and A. Okiji:
    "Local Fermi-Liquid Description of Thermodynamics for Ce Compounds"
    Technology Reports of the Osaka University, vol.37, p.5 (1987).
     
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Last updated on 2020.02.27